Home / 12,316.42-18,472.41-3,549.18

Finding the Fourth Proportional to 12,316.42, 18,472.41 and 3,549.18

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Solution

The fourth proportional to 12,316.42, 18,472.41 and 3,549.18 is: 5,323.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316.42 : 18,472.41 = 3,549.18 : x
  2. Step 2: Convert to fraction form
    12,316.42/18,472.41 = 3,549.18/x
  3. Step 3: Cross multiply
    12,316.42x = 18,472.41 × 3,549.18
  4. Step 4: Simplify right side
    12,316.42x = 65,561,908.12
  5. Step 5: Solve for x
    x = 65,561,908.12/12,316.42
  6. Step 6: Final answer
    x = 5,323.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.